<?php
/**
 * Description
 *
 * PHP version 7
 *
 * @category Custom
 * @package  Custom
 * @author   ryu <mo5467@126.com>
 * @date     2020-04-25 11:28:26
 * @lastTime 2020-05-01 23:00:54
 * @license  https://opensource.org/licenses/MIT MIT License
 * @link     none
 */

namespace Design\Structural\Facade;

interface Bios
{


    public function execute();


    public function waitForKeyPress();


    public function lanch($os);


    public function powerDown();


}//end interface
